Question about 1999 Saab 9-5

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Bucking when revs hit 2000 in every gear?

Bought a 1999 saab 93 a few weeks ago it has a full service history with £650 spend on it in Aug this year. It had been lying up for a few week. When i first drove it it was a dream but in the last week it has started to buck in every gear when the revs hit 2000. Have no idea where to start to solve this problem. Please help as i am new to Saabs.

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  • tonycoffey Dec 11, 2008

    Thanks Steve,

    Will try this tomorrow and let you know how i get on.

  • tonycoffey Dec 11, 2008

    Just thinking, when it's in fifth gear and bucks at 2000 revs if you drop it back to fourth the revs go to 3000 revs with lots of power and no bucking but if you go back to fifth it stalls. i was told that it could be in limp mode? any ideas

  • tonycoffey Dec 11, 2008

    True, i did'nt think of that. The engine management has not come on but it's a good point to check if the light comes on at start up.

    Thanks Steve.



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Hi the car may have been run low on fuel and sucked some of the dirt that builds up in the fuel tank to the fuel filter starving the car of fuel when its looking for more

Solution.... change the fuel filter and we can go from there

Hope this helps


Posted on Dec 11, 2008

  • 2 more comments 
  • usersteve83 Dec 11, 2008

    No problem the car sounds like its been looked after lets try and get her running as she should


  • usersteve83 Dec 11, 2008

    I would still go for the fuel filter, dropping a gear will just make it work more for the fuel and force it through, climbing a gear again the engine stops working so hard it wants the fuel to flow through and just choking (hope you get what i mean here), Is there any lights on the dash ie.. engine management light this will be on if car is in limp mode unless the bulb has been removed to hide it, check if it lights up then goes out when you start the car,


  • usersteve83 Dec 11, 2008

    No problem failing all i have mentioned then you need to look for the car sucking in air where it should be getting fuel ie inlet manifold (gaskets, cracks) and connected hoses and pipes for splits bad joints, please let me know how you get on and rate my answers accordingly.

    Good luck


  • usersteve83 Dec 14, 2008

    Hi mate just wondering ,, did you solve the problem??




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